She won silver at the 2011 World Championships and 2012 Olympics, but having claimed gold in 1:55.45 six years earlier, she failed to qualify for last August’s world final, finishing last in her semi-final in 2:03.18.

New regulations requiring female athletes to take testosterone-lowering medication if their levels were above the legal mark were suspended for two years by the Court of Arbitration for Sport last July.

Sharp, 25, ran 1:59.29 at Sunday’s race in Birmingham race, which was won in 1:56.92 by Francine Niyonsaba of Burundi.

Asked about the Olympics in August, she added: “It’s two races, so there’s nothing I can do, there’s nothing anyone else can do. It’s out of our control.”